為何油車鏈條比皮帶耐用 電車則相反? - 機車

By Anthony
at 2021-03-06T22:16
at 2021-03-06T22:16
Table of Contents
回應一些板友的推文
推 coldcolour: 3那點不同意,以同樣的操作來說,檔車1~3檔收拉油門的
→ coldcolour: 頓挫感是比GGR明顯的,GGR接近速克達,回充開最大才會
→ coldcolour: 接近檔車,但還是比較小,不認為檔車這樣對鏈條的作用
→ coldcolour: 力"和緩許多",有騎過GGR的話應該知道我在說什麼
→ coldcolour: (以上不包含收油拉離合,或調高怠速或靠電控降低引擎
→ coldcolour: 煞車之類的狀況,純以原廠配置日常使用來討論)
這應該是設定問題,油車收油就真的幾乎不噴油,只噴少少怠速的量
此時引擎產生的阻力很大,就會帶來頓挫感,但是電腦都可以控制曲線
我也可以設定電腦收油後繼續噴油一直滑行,慢慢減噴直到怠速,就不會有頓挫感了
跟電車不開回充收電門也還是持續給電慢慢減少一樣
或是收油門輕微控制達到減速效果就好,畢竟檔車傳動直接,對引擎動力很敏感
推 Tudo11927: 電馬達低轉大扭力是他「能」不是它一定會最大扭力,正
→ Tudo11927: 常人騎檔車不會萬轉彈離合檔檔紅線,電車也不至於每次
→ Tudo11927: 都全電門起步吧?
→ kouyoumin: 電車起步不會固定全扭力啦,那樣輕催跟催到底就沒分別
→ kouyoumin: 了
推 chi17: 最大扭力要全電門才有啊..現在ride by wire的車你全開都不03/06 17:43
→ chi17: 一定真的給你全動力了
這邊講一下理想的馬達的輸出特性,馬達是定功率輸出的,功率又是扭力乘轉速
控制電門是控制轉速不控制扭力,電門開小還是全扭力,只是轉的比較慢
在最大馬力還沒達到的狀況下,基本上是最大扭力輸出,因轉速低而未達最大馬力
到了最大馬力之後轉速又要上升怎麼辦,扭力就會下降,因為功率是固定的
在這邊用馬達拳擊機器人做個比喻,拳重比做扭力,拳速比做轉速
一個機器人規格最大一拳可以打100磅,最快可以打到100拳/min,30拳/min達最大功率
最大輸出時,可以用100磅的力揍人30拳/min,我要他打快一點,因為功率固定
要他每分鐘揍人50拳,力量就會下降到60磅,最快每分鐘揍人100拳呢?就只剩30磅的力
但是如果你說被打的好痛,要他小力一點,出一成力就好,那會發生什麼事情呢?
機器人說好啊,我出一成力就好,碰!一拳還是100磅,只是變每分鐘揍你3拳
你會說哇!為什麼我電門調10%還是這麼痛,那我調成電門1%就好
結果就是你還是被100磅的拳打,變成每3分20挨一拳而已
--
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